Home / 305,738.10-458,218.35-272,301.30

Finding the Fourth Proportional to 305,738.10, 458,218.35 and 272,301.30

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Solution

The fourth proportional to 305,738.10, 458,218.35 and 272,301.30 is: 408,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,738.10 : 458,218.35 = 272,301.30 : x
  2. Step 2: Convert to fraction form
    305,738.10/458,218.35 = 272,301.30/x
  3. Step 3: Cross multiply
    305,738.10x = 458,218.35 × 272,301.30
  4. Step 4: Simplify right side
    305,738.10x = 124,773,452,388.86
  5. Step 5: Solve for x
    x = 124,773,452,388.86/305,738.10
  6. Step 6: Final answer
    x = 408,105.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.